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Transforming images is easy with the DotNet Transform Image component. You can scale, crop, rotate and flip your image in order to get it transformed to your requirements.
Because it's a chunk of code you can call on, it's great for multiple file processing, such as multiple image resizing, but also fine for single image processing too, perhaps upon user request to rotate the image, for instance.
Copy the dotnet-transform-image.aspx to your website root folder. Create 3 new folders in the root, titled display, originals and output. display is where you have a smaller version of your image to display to the user. originals is where you have your high quality original image which the output image will work from. output is where your image will be saved.
To use this component, just POST your form values to dotnet-transform-image.aspx as follows;
tImageWidth = The width of the image as an integer number only
tImageHeight = The height of the image as an integer number only
tImageCropStartX = The top left x-coordinate of the crop box area, integer number only
tImageCropStartY = The top left y-coordinate of the crop box area, integer number only
tImageCropEndX = The bottom right x-coordinate of the crop box area, integer number only
tImageCropEndY = The bottom right y-coordinate of the crop box area, integer number only
tImageRotate = The degrees to rotate as an integer - either 0, 90, 180 or 270
tImageFlipX = 1 to not flip on the x-axis, -1 to flip on the x-axis, integer number only
tImageFlipY = 1 to not flip on the y-axis, -1 to flip on the y-axis, integer number only
tImageName = The name of the image
These values when passed to the ASPX page will transform the image as you request. Easy!
Because this component works from a smaller screen display version plus a seperate high quality version, you have the speed of viewing the image quickly and the quality of a master version to use for transformation processing (which means you can choose to scale images upwards and get a high quality output image).
Documentation and demo example included with component.